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Zerstörungsfreie Tomographie von Raumladungs- und Polarisationsverteilungen mittles Wärmepulsen
- Non-destructive, three-dimensional imaging of space-charge and polarization distributions in electret materials has been implemented by means of laser-induced thermal pulses. In pyroelectric films of poled poly(vinylidene fluoride), images of up to 45 x 45 pixels with a depth resolution of less than 0.5 mu m and a lateral resolution of 40 mu m were recorded, the latter being limited by fast thermal diffusion in the absorbing metallic front electrode. Initial applications include the analysis of polarization distributions in corona-poled piezoelectric sensor cables and the detection of patterned space-charge distributions in polytetrafluoroethylene films.
Author details: | Axel MellingerORCiDGND, Rosaura Flores SuárezGND, Rajeev Singh, Michael WegenerORCiDGND, Werner WirgesORCiD, Reimund GerhardORCiDGND |
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URL: | http://www.oldenbourg-link.com/loi/teme |
DOI: | https://doi.org/10.1524/teme.2007.74.9.437 |
ISSN: | 0171-8096 |
Publication type: | Article |
Language: | German |
Year of first publication: | 2007 |
Publication year: | 2007 |
Release date: | 2017/03/24 |
Source: | Technisches Messen : tm. ISSN 0171-8096. - 74 (2007), 9, S. 437 - 444 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer review: | Referiert |
Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik |